No one can say when the bulls return but it is safe to say that the market will recover eventually with all the good news pouring in.
The economy of words or in other words a perfect example of summing things is a nut shell. Predicting the bull is not possible. Not one or two but numerous factors are affecting the market and in this case your regression does not give you an unbiased analysis.
The question of the day should be what should be done right now to get the profits maximized? This is important because we have low values off many coins in the market and these values will be high of course in the Bull Run so it is not irrational to invest today for future returns.